【摘要】 基于最一般情况 ,借助线弹性薄壳理论 ,建立了加肋圆柱壳声辐射计算模型 ,分析模型考虑了环肋和舱壁对圆柱壳的径向、切向、纵向作用力以及纵向弯矩 .导出了分析模型的声弹耦合控制方程 ,利用傅氏变换和模态展开给出了辐射声压的计算方法 .通过大量数值计算 ,研究了舱壁、环肋刚度与间距以及结构阻尼等因素对辐射声压的影响 .分析模型与工程实际比较接近 ,有较广的应用范围 .更多还原

【Abstract】 Used linear elastic shell theory, builded a acoustic-shell coupling model, which considered all reacted forces and moments between rings, bulkheads and cylindrical shell. Combined Fourier transform with modal expansion, provided the method to solve radiated pressure. With a lot of numerical calculations, investigated the characteristics of stiffened cylindrical shell, included the effects of bulkheads, ring’s stiffen, ring’s distance, and damps of structure on the radiated pressure. The modal is close to engineering practice, has a wide usage.更多还原